Can't help but notice that my Drum will burn pretty much straight down. Last I used I lit it with a fire starting block. It was using the area right around it for heat. Looked like it burned like this til it hit the bottom of the basket. When I was wrapping the butt to take it off the basket flared up...from the very bottom. Still had quite a bit of unburned chunks/briquettes covering the top half of the basket. This normal? If so can someone explain why? Just curious.